html,body,div,ul,li,h1,h2,h3,h4,h5,h6,p,dl,dt,dd,ol,form,input,textarea,th,td,select{margin:0;padding:0}
        *{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}
        html,body{min-height:100%}
        body{font-family:Helvetica,Pingfang SC,Microsoft YaHei,STHeiti,Verdana,Arial,Tahoma,sans-serif;font-size:14px;color:#333;background:#fff;position:relative}
        h1,h2,h3,h4,h5,h6{font-weight:normal}
        ul,ol{list-style:none}
        img{border:none;vertical-align:middle}
        a{color:#666;text-decoration:none}
        a:visited{color:#666;text-decoration:none}
        a:hover{color:#666;text-decoration:none}
        a:active{color:#666;text-decoration:none}
        table{border-collapse:collapse;table-layout:fixed}
        input,textarea{outline:none;border:none}
        textarea{resize:none;overflow:auto}
        .clearfix{zoom:1}
        .clearfix:after{content:".";width:0;height:0;visibility:hidden;display:block;clear:both;overflow:hidden}
        /* 本案例CSS*/
        header{width: 100%; position: relative; z-index: 9999; height: 50px; box-sizing: border-box;background-color: #202020;}
        .wrap{width: 1200px;margin: 0 auto;}
        #nav {display: flex;display: flex;flex-direction: row;justify-content: center;align-items: center;flex-wrap: wrap;}
        .logo{width: 40px;height: 42px; overflow: hidden;}
        .logo a{display:block;}
        .logo a img {max-width: 100%;}
        ul.nav {display: inline-flex;flex: 1;padding-left:50px;justify-content: center;}
        li.nav-item {width: 112px;height: 50px;}
        li.nav-item>a{display: block;text-align: center;line-height: 50px;font-size: 12px;position: relative;color: white;}
        /* li.nav-item>a::before{ display: none; content: ''; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%); border-width: 0 10px 10px; border-style: solid; border-color: transparent transparent #119f0f; position: absolute;} */
        li.nav-item:hover>a ,li.nav-item.active>a{color: greenyellow;}
        li.nav-item:hover>a::before,li.nav-item.active>a::before{display: block;}
        /* 二级菜单 */
        .subMenu{display: none;position: absolute;top: 50px;left: 0;width: 100%; height: 250px;background-color: #202020;}
        .subMenu>ul{display: flex;flex-wrap: wrap;flex-direction: row;justify-content: center;align-items: center;}
        .subMenu>ul>li>a{display:block;padding:0 18px;text-align: center;line-height: 50px;color: #fff;}
        .subMenu>ul>li>a:hover{color:red}
		.subMenu>ul>li>a>img{
			width: 150px;
			margin-top: 30px;
			margin-right: 20px;
			
		}
		.subMenu>ul>li>a{
			p{
				height: 20px;
				margin: 0 auto;
				font-size: 13px;
				color: white;
			}
		}
		#pic1-2{
			margin-top: 8px;
		}